09 Fluorine

symbol : f
atomic number : 9
atomic mass : 18.9984032
number of protons : 9
number of electrons : 9
number of neutrons :10
period : 14
group : halogens
melting point : -219.62 °C
boiling point : -188.14 °C
state (at room temperature) : gas
density : 1.696 g/cm3
element classification : non-metal
color of element : greenish
who discovered it : henri moissan
when was it discovered : 1886
where was it discovered : france
how it was discovered : moissan collected the gas by passing an electric current through one of its compounds, hydrogen fluoride
flammable : yes
diagram : http://www.google.ca/imgres?q=bohr+rutherford+fluorine&start=112&um=1&hl=en&sa=X&biw=1143&bih=508&tbm=isch&tbnid=TLlVm0t5ZDA3aM:&imgrefurl=http://sicms.es/pu-bohr-rutherford-diagram-for-oxygen/&docid=jp4f4IhCI9074M&itg=1&imgurl=http://cac07science.wikispaces.com/file/view/oxygen.gif/32590249/oxygen.gif&w=213&h=211&ei=MzBHUbXVLNXk4AO1-4GgDg&zoom=1&ved=0CDQQrQMwEDhk&iact=hc&vpx=732&vpy=142&dur=172&hovh=168&hovw=170&tx=104&ty=105&page=6&tbnh=141&tbnw=159&ndsp=20


http://www.chemicalelements.com/elements/f.html
http://education.jlab.org/itselemental/ele009.html
http://www.chemicalelements.com/elements/f.html